Recent Earthquakes in California and Nevada


== PRELIMINARY EARTHQUAKE REPORT ==

U.S. Geological Survey, Menlo Park, California
U.C. Berkeley Seismological Laboratory, Berkeley, California


Version #0: This report supersedes any earlier reports of this event. This is a computer-generated message. This event has not yet been reviewed by a seismologist.

A micro earthquake occurred at 9:13:03 AM (PDT) on Monday, August 18, 2025.
The magnitude 0.3 event occurred 7 km (5 miles) WNW of Cobb, CA.
The hypocentral depth is 9 km ( 5 miles).


Magnitude 0.3 - duration magnitude (Md)
Time Monday, August 18, 2025 at 9:13:03 AM (PDT)
Monday, August 18, 2025 at 16:13:03 (UTC)
Distance from Cobb, CA - 7 km (5 miles) WNW (286 degrees)
The Geysers, CA - 8 km (5 miles) NNW (330 degrees)
Kelseyville, CA - 16 km (10 miles) S (169 degrees)
Soda Bay, CA - 18 km (11 miles) S (184 degrees)
Lower Lake, CA - 18 km (11 miles) WSW (245 degrees)
Coordinates 38 deg. 50.4 min. N (38.840N), 122 deg. 48.3 min. W (122.804W)
Depth 8.70 km (5.40 miles)
Quality Good
Location Quality Parameters Nst=8, Nph=8, Dmin=1.2 km, Rmss=0.05 sec, Erho=1.31 km, Erzz=0.74000001 km, Gp=102 degrees
Event ID# nc75225462
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